This method is called when the constructor is compiled in
Stylesheet.compileConstructor() and not as the syntax tree is traversed.
final ConstantPoolGen cpg = classGen.getConstantPool();
final InstructionList il = methodGen.getInstructionList();
// Returns the KeyIndex object of a given name
final int getKeyIndex = cpg.addMethodref(TRANSLET_CLASS,
"getKeyIndex",
"(Ljava/lang/String;)"+
KEY_INDEX_SIG);
// Initialises a KeyIndex to return nodes with specific values
final int lookupId = cpg.addMethodref(KEY_INDEX_CLASS,
"containsID",
"(ILjava/lang/Object;)I");
final int lookupKey = cpg.addMethodref(KEY_INDEX_CLASS,
"containsKey",
"(ILjava/lang/Object;)I");
final int getNodeIdent = cpg.addInterfaceMethodref(DOM_INTF,
"getNodeIdent",
"(I)"+NODE_SIG);
// Call getKeyIndex in AbstractTranslet with the name of the key
// to get the index for this key (which is also a node iterator).
il.append(classGen.loadTranslet());
il.append(new PUSH(cpg,_index));
il.append(new INVOKEVIRTUAL(getKeyIndex));
// Now use the value in the second argument to determine what nodes
// the iterator should return.
il.append(SWAP);
il.append(new PUSH(cpg,_value));
if (this instanceof IdPattern)
{
il.append(SWAP);
il.append(methodGen.loadDOM());
il.append(SWAP);
il.append(new INVOKEINTERFACE(getNodeIdent, 2));
il.append(SWAP);
il.append(new INVOKEVIRTUAL(lookupId));
}
else
{
il.append(SWAP);
il.append(methodGen.loadDOM());
il.append(SWAP);
il.append(new INVOKEINTERFACE(getNodeIdent, 2));
il.append(SWAP);
il.append(new INVOKEVIRTUAL(lookupKey));
}
_trueList.add(il.append(new IFNE(null)));
_falseList.add(il.append(new GOTO(null)));
